Derry video: Investigation into claim police left woman in bus lay-by
19 March 2014 Last updated at 18:31 GMT
The Police Ombudsman has launched an investigation into video footage that appears to show police officers leaving a incapacitated woman in a bus lay-by
The two officers drove off after the incident, which is said to have happened in John Street, Londonderry, on St Patrick's Day.
Keiron Tourish reports.